Vyacheslav Gapon – personal blog, manuals, articles, notes, development
In this article I will give some examples of items for Zabbix agent and server.
Here is an example of counting the number of active processes (Element type is Zabbix agent, so I often count the number of processes nginx, apache2, sshd, named, radiusd, etc., and for a value of 0 you can make a trigger that the process does not work):
Continue reading “Examples of Items for Zabbix”Starting with the iPhone 6s version, the “Raise to Wake” function has appeared.
Thanks to which you can quickly check notifications on the iPhone, take a photo, turn on a flashlight, etc., without pressing the “Home” button.
If you do not perform any action, the iPhone will return to sleep.
To upgrade the firmware of the router, you need to disconnect all unnecessary cables, leaving only the power and patchcad connected to one of the LAN ports and computer. In most cases, updating via Wi-Fi is not recommended! Then type in the browser address http://192.168.1.1 or http://192.168.0.1, thereby opening its web-interface. The address may be different, you can find it by looking at the IP address of the gateway in the network settings.
Continue reading “How to upgrade the router firmware”The official page for downloading firmware and utilities for recovery – https://www.asus.com/support
Continue reading “Firmware Update and Recovery of Asus RT-N10 Router”I will give an example of updating the firmware of the Huawei Quidway S2326TP-EI switch via BOOTROM MENU.
Continue reading “Huawei Quidway S2300 firmware upgrade via BOOTROM MENU”I will give an example of updating the firmware of the Huawei Quidway S2326TP-EI switch.
First, let’s look at the current firmware version:
Master boot record (MBR) — code and data located in the first 512 bytes of the hard disk needed to boot the operating system.
From 512 bytes of MBR code contains:
446 bytes — Bootstrap
64 bytes — Partition table
2 bytes — Signature
For example, I will configure DHCP snooping on the BDCOM P3310C EPON OLT.
First, let’s connect to the device and go to the configuration mode:
Continue reading “Configuring DHCP snooping on BDCOM P3310”
In this article I will briefly describe the difference between MASQUERADE and SNAT.
MASQUERADE. Less fast routing than SNAT with mass requests, since for each new connection an IP address on the external network interface (WAN) is determined. Great for home use routers and when changing the IP address on the WAN interface.
Continue reading “Difference between MASQUERADE and SNAT”
The script every second displays the number of incoming and outgoing packets per second on the specified network interface.
Place the contents of the script into a file, for example, pps.sh and execute by specifying the name of the network interface (you can stop the execution of the script with CTRL+C):